<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<html>
    <meta charset="utf-8" />
    <head>
           <title>第一个 JSP 程序</title>
    </head>
    <body>
           <%
                  out.println("你的 IP 地址 " + request.getRemoteAddr());
           %>
    </body>
</html>